A. To prevent progress loss when logging in with Facebook, ensure that you are logged into the correct Facebook account that you used to initially set up the game. If you have multiple accounts, try logging out of Facebook on your device and logging back in with the correct account before starting the game.

B. If you experience progress loss, check if the game has a local save option. Go to the game settings and look for a backup or save option. If available, use it to save your progress before logging in with Facebook.